Feast Feature Server <=0.58.0 - Arbitrary File Read

Feast the open-source Feature Store Feature Server through 0.58.0 exposes an unauthenticated POST /read-document endpoint that reads an arbitrary, caller-supplied file path with no authentication and no path validation. The readdocumentendpoint handler passes the JSON filepath field straight to...

CVE-2026-56121_exploit

CVE-2026-56121 — Feast Registry Unauthenticated RCE dill.loads Unauthenticated remote code execution in the Feast feature store's registry gRPC server. The ApplyFeatureView RPC rebuilds an OnDemandFeatureView from the request proto. Doing so base64-decodes spec.userdefinedfunction.body and passes...

CVE-2026-56121-Feast-Unauth-RCE

CVE-2026-56121 — RCE no autenticado en Feast a través de deserialización del registro gRPC El servidor gRPC del registro de Feast 0.63.0 ejecuta dill.loads sobre la función definida por el usuario de un OnDemandFeatureView tan pronto como llega una especificación — antes de cualquier verificación...

EXPLOIT-CVE-2026-56121

CVE-2026-56121 — Feast Unauthenticated RCE ApplyFeatureView gRPC Deserialization Unauthenticated remote code execution in Feast 0.63.0 via unsafe dill.loads deserialization in the registry gRPC server. This repository contains a self-contained proof-of-concept exploit and a Dockerized vulnerable...

CVE-2026-18947

A flaw was found in Feast. An authorization bypass vulnerability exists in the /materialize and /materialize-incremental endpoints. By sending a specially crafted request that omits the featureviews field, an attacker can bypass intended permission checks. This allows an unauthenticated remote...

CVE-2026-18948

A flaw was found in Feast. The system improperly deserializes user-defined functions UDFs stored in its registry, which are serialized using the 'dill' library. This allows a remote attacker to store a malicious UDF, leading to unauthenticated arbitrary code execution on the feature server in...

CVE-2026-18941

A flaw was found in Feast and feast-operator. The default configuration for both the Feast SDK and the feast-operator is "noauth," meaning no security manager is installed. This default allows unauthenticated and unauthorized access to feature-server, registry-server, and offline-server endpoints...

CVE-2026-18942

A flaw was found in the Feast operator. A malicious tenant could inject arbitrary code into their feature repository. This code would be executed by an automated process with elevated privileges, allowing the tenant to steal sensitive credentials. This could lead to a direct escalation of...

CVE-2026-18948 Feast: feast: unsafe dill deserialization of registry-stored udfs — rce on feature server and registry server

A flaw was found in Feast. The system improperly deserializes user-defined functions UDFs stored in its registry, which are serialized using the 'dill' library. This allows a remote attacker to store a malicious UDF, leading to unauthenticated arbitrary code execution on the feature server in...

EUVD-2026-55818

A flaw was found in Feast. The system improperly deserializes user-defined functions UDFs stored in its registry, which are serialized using the 'dill' library. This allows a remote attacker to store a malicious UDF, leading to unauthenticated arbitrary code execution on the feature server in...

CVE-2026-18948

Feast: A flaw in serializing UDFs with dill enabling unsafe deserialization leads to unauthenticated RCE on the feature server and, via deserialization bypass, on the registry server. A remote attacker can store a malicious UDF, with the risk of cross-tenant data access and lateral movement in de...

CVE-2026-18948 Feast: feast: unsafe dill deserialization of registry-stored udfs — rce on feature server and registry server

A flaw was found in Feast. The system improperly deserializes user-defined functions UDFs stored in its registry, which are serialized using the 'dill' library. This allows a remote attacker to store a malicious UDF, leading to unauthenticated arbitrary code execution on the feature server in...

CVE-2026-18948

A flaw was found in Feast. The system improperly deserializes user-defined functions UDFs stored in its registry, which are serialized using the 'dill' library. This allows a remote attacker to store a malicious UDF, leading to unauthenticated arbitrary code execution on the feature server in...

CVE-2026-18947 Feast: feast: authorization bypass in /materialize endpoints enables dos via unauthorized full re-materialization

A flaw was found in Feast. An authorization bypass vulnerability exists in the /materialize and /materialize-incremental endpoints. By sending a specially crafted request that omits the featureviews field, an attacker can bypass intended permission checks. This allows an unauthenticated remote...

EUVD-2026-55817

A flaw was found in Feast. An authorization bypass vulnerability exists in the /materialize and /materialize-incremental endpoints. By sending a specially crafted request that omits the featureviews field, an attacker can bypass intended permission checks. This allows an unauthenticated remote...

CVE-2026-18948

A flaw was found in Feast. The system improperly deserializes user-defined functions UDFs stored in its registry, which are serialized using the 'dill' library. This allows a remote attacker to store a malicious UDF, leading to unauthenticated arbitrary code execution on the feature server in...

CVE-2026-18947 Feast: feast: authorization bypass in /materialize endpoints enables dos via unauthorized full re-materialization

A flaw was found in Feast. An authorization bypass vulnerability exists in the /materialize and /materialize-incremental endpoints. By sending a specially crafted request that omits the featureviews field, an attacker can bypass intended permission checks. This allows an unauthenticated remote...

CVE-2026-18947

A flaw was found in Feast. An authorization bypass vulnerability exists in the /materialize and /materialize-incremental endpoints. By sending a specially crafted request that omits the featureviews field, an attacker can bypass intended permission checks. This allows an unauthenticated remote...

CVE-2026-18947

Feast contains an authorization bypass in the /materialize and /materialize-incremental endpoints. A crafted request missing the feature_views field can bypass permission checks, allowing an unauthenticated or any authenticated user to trigger a full re-materialization of all feature views, leadi...

CVE-2026-18942 Feast-operator: feast: feast apply cronjob runs user python with feature-server sa — tenant code to sa token escalation

A flaw was found in the Feast operator. A malicious tenant could inject arbitrary code into their feature repository. This code would be executed by an automated process with elevated privileges, allowing the tenant to steal sensitive credentials. This could lead to a direct escalation of...